Table 3 CDR3 length of TCR chains in selected vertebrates.

From: A comprehensive analysis of the germline and expressed TCR repertoire in White Peking duck

Species

TCRα

TCR β

TCR γ

TCR δ

Reference

Duck

4, 16 (9.5) a

5, 17 (10.2)

2, 16 (8.0)

5, 19 (11.5)

—

Human

6, 12 (9.2)

6, 12 (9.5)

1, 12 (7.2)

8, 21 (14.5)

53

Mouse

6, 12 (8.5)

4, 13 (8.9)

4, 11 (8.8)

6, 19 (12.7)

53

Japanese flounder

7, 15 (11.2)

7, 15 (11.2)

5, 10 (8.5)

9, 17 (13.3)

36

Nurse shark

3, 12 (8.0)

0, 19 (9.6)

6, 12 (9.1)

4, 27 (9.8)

54

  1. The mean length is bracketed. The CDR3 length was defined as four amino acids less than the number of amino acid residues between the J region–encoded GXG triplet, where G is glycine and X is any amino acid, and the nearest preceding V region–encoded cysteine.
  2. aRange of CDR3 length: minimum, maximum.
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